Cooling system



D. T. Macu-:OD 1,881,776

COOLING SYSTEM Filed July 7, 1928 3 Sheets-Sheet l la J9 ILM @Jawa A +/TLW-M Oct. 11, 1932. 1 D T. MaGLEOD 1,881,776

v COOLING SYSTEM Filed July 7, 1928 3 Sheets-Sheet 2 Oct. l1, 1932. D. T. Macu-:OD 1,831,776

' COOLING SYSTEM Filed July '7, 1928 s sheets-sheet 3 Patented Oct. ll, 1932 n. UNITED STATI-:s :PATENT foi-"Fics i VDANIEL T..MACIJOD, vOlF MILWAUEE, WISCONSIN, ASSIGNOR TOPERFEXCORPORATION,

OF MILWAUKEE, WISCONSIN, A CORPORATION 0F WISCONSIN .oooLiNG SYSTEM Application-filed .my 7,1928. seria1 N0.291,os7.

This invention 'relates vto means for. ltrans- -erring :heat .from oneyphysical medlum to another and ymore especially to .devices commonly fknown .as radiators such Vlas used, `.for

instance, in connection with -internal comibustion engines and the like.v

Thefmain objects of the invention are to .provide a .complete combined `radiator and circulating unit of .improved .formand construction; `to provide a radiator device inl such Vform and adapted ifor'such operation -as to increase the heat transfer eiect per .unit

of water or other .heat carrying medium.; to provide a long .travel path both for the water and for ztheV-air Yin a radiator .of this kind;

to provide for movement of these mediain Y mutually opposite directions substantially;

to utilize vthe natural draft eiiect ofga column of warm air .for .supplementing'the .fan

. series stage form. Theseand other 'objects Y fao effect; to provide such a vradiator adapted for heavy duty zon a minimum supply .of water; to provide such la device as a whole 'in compact and unitary form `adapted for "minimum .ground .space consistent with -accessibility and convenience 1n control and upkeep; and vto provide a vvertical unit ra diator of the character described in upright will more fully appear.

The following is a brief description of a 'vertical unit type .of radiator 'with a fan combined therewith. This was developed primarily for installation `in the -oil .fields where there lare many engines operating lfrom y3.0 'to 80 H; P. .in pumpingfplants, .and for.

other Vuses where ,a thermo-Siphon system vis used in connection. with a water. tank placed either on the roof or on a trestle adjacent thereto. While athermo-siphon system operatesreasonably well .under ordinary conditions on a pumping well, when loperated `under a heavy load themotor .usually'runs `very hot. Furthermore, :when moving the `installations from one .location to Yanother it is necessary :to dismantle 4the wooden .tanks which are commonly used .for water storage K purposes, and this `occasions y'serious delay,

which the present invention overcomes. The

v.radiator herein described and claimed is :designed on ythe counter-current `principle `room also 'being indicated by -dot and 'dash whereby fthe hottest fwater'comes in contact withlthe .hottest `air when the latter is leavzing `:the radiator, and the cooled water about Ito Vleave vthe radiator vcomes :in contact with the'coldest incoming air. The radiator isfdesigned Eto obtain primarily a longer Itravel .of the Waterfthan is'usual inthe lordinary square ftype of radiator, and also to yobtain a longer travel of the air than is1usual, 4and to reduceithe size ofthe fan l'required and the 'power consumed. In thecasenof a small vertical unit for a 40 P. engine the radiator is 24 wide and 40 high, and lthe ifan 20 :in diameter requiring approximately 1% H. P., whereas ythe-usual type of radiatorwould be 30 :square and would use a 26 fan, requiring aboutf21/ H. P.

rEhe .apparatus 2hereshown uses `a blower ...type .of fan,'whereasra suction type'l of fan lhas usuallylbe'en used heretofore. .This fan drives 70 vthe air through the lower portion ofthe radiator and through 'a she'etmetal frontconnecation and .through ithe upper portion lof the radiator. Ashallowftyp'e of corefis used, fand henc'etmore eiicientresu'lts areobtained .from the air delivered. Furthermore by connecting astack throughthe vroof tothe discharge casing, not only does the stackassist-the small lsize fan in pulling 'the air `through the 'radiyzator core, but in rcold weather under ,some S0 v:conditions Ait lis'practicable to remove the belt from .the 'fan pulley A.and use only natural .draft for lthe purpose.

f An illustrative embodiment of thisinvention :is shownlby the accompanying drawings B5 .in which shown vin Fig.` v3, as viewed from the left with the pump vand its supporting plate omitted. m

`diagonally adjacent oriV the floor,

'In the construction shown in the drawings, referringfirst to Figs. 1 and 2, the improved radiator unit 1' and the internal combustion engine 2 arel built separately and are mounted They are 'Y connectedl by pipes 3 and Il for circulation of 'Water throughthe engine jacket and the 'ra- Carries diator as will be apparent. VPipe '3 cooled water frointhe base of theradiator to the -lowerpartqof the-engine jacket, and pipe lcarries hot waterfrom the upper part of the jacket to the top of the radiator.A VVAir,

for .cooling the radiator is admitted intherv A lower Vpart at, under forced drafti; Iytpassestf* directly through the lowermost stage 6 of the The water is drivenff'rom pump 17 through the upper section of pipe 3 to the jacket of engine2, thence through pipe 4 to entrance 4 at the top of theradiator, thence down through thecore sections 21 past stages 8 6 to the exitV 3 at the bottom of the radif ator, andthence'through' the lower section of radiator, thence upward throughthefront casing vmember 7 thence-backward. through the second stage 8k of theradiator to 4the discharge chamber 9 from' wliencethe aire in its heated state ris discharged upward through the connector 10Vinto v the stack 11 leading upward throughthe roof tothe openair. *In

. `order to provideforthe escape of steam from the radiator 1 a vent itubey 12 isfprovidedV a limited extrasupply ofwwaterto replace evaporation or otherloss'.Y` r

' lnorde'rto provide a positive/and .forced tvdraft intothe radiator intake 5, a fan lrof the blower type is mountedthereinandV operated by connection `to the engine, the belt 141 ,being carried bythe engine.v ily wheelandV the relatively small VKpullej,7 16 on the fan shaft 13. Afrotary pump 17 is: connected v'in the I" ,water circuit' as-.in thelpipe 3. This pumpis f driven'by abelt 1 8' carried'on the pump pulley 19 andfon theouter edge offan pulley "16, which is grooved at 16 to .receive the narrow -A `V-belt 1'8. The pump rests -on across plate Ifr'lhe"radialtor a whole, referring now to Figs. 3 and 4, comprises mainly a rec-l tangular frame'20, a plurality/of interchanger./andsa-id members Z, 9and 13;, Theframe 2O includes a, pairY ofl uprightiside-bars'f23,`aitop manifold 24 and a'y bottom irnanifold 25,foot f therefor also extending togthe open air. yThis tube also serves as a stand-.pipe reservoirfor Apipe 3 back to the pump. The rapid flow of the watertlirough the serial stage radiator' makes forv economy lof spaceand water and permits arelatively small fan to suffice.

:The initial cost of the outfit as a whole is also minimized due to the smaller permissible size ofiinit resulting from a vmore intensive use of given volumes of air and water and a wider range of the'temperature cycle for the water. It is readilyfinstalled in .connection vwith ai plant already.` inV use and withoutV disturbing the setting oftheold engine. It will be noted that the wat-er 'connection from the engineruns into `the top cast iron sectionfior'manifold of the radiator, and that directly. overiv sameis alarge vent pipe con- ;nection, which in the 'event ofany steam developing I dueY to overload ywillv immediately vent the radiator Vthrough the roof instead of vthrough the usual overiiow connection. Y This vent'pipe'alsoserves the'purpose of an .eX- --pansion tanlrfwhen the volume of water is inthrought-he overflow l.pipe'on the ordinary type of radiator. Adjacent to the vent pipe :is an overiiow filler connection 28 and loosening the plugin this connection will always in'- dicatewliether or not the system is filled with able upright core,V sections 21, a fan casing.22,-

members 26, andthe cross platel'f for pumpA 59 w17.. The frame k2Ois tall-and narrow and;

' the sections 21 connecting said manifolds are correspondingly long, thusproviding ,for the s'eriesls'ta'ge ,vertical -unit operation, air Vpassing through the sections; reversely at the .r55'top'and bottom respectively, as Vindicated by ,the arrows.

y i. y The'top man ifoldj24lias an aperture at f for connectingthefpipe 12 and anotherap'ermember'9, but, at' the topl it is roundfto receive A VVturefatl' for connecting the pipe l. The, a manifoldV 25 hasl anaperture-B for,` connectj ingxpipe .The connection 10 is rect-angular4 land oblongl at its. lower end to fitthetopyof water. Thepipe 12-maycommunicate with .a water reservoirnot :shown-on the roof:

.The radiator proper is made up of a sec- Y tionalcore suchfor instance. as shown in Patent Nor/21,606,204 so that in the `event'ofany damage or: leaks developing-in any section such section` can beV removed and repaired and replaced.v .Plugging'the holesin 'the4 top Yand bottomheadei` castings permits using the radiatoruduring this'repairfinterval. l

It is intended that this type 4of radiator, because lof .these numerousfeatures may have a wideapplication in connecti'onxwith th-eex- Y isting yengines as well asnew installations.

The` principles involves are basic and-sound for practicaloperation.` 1-

Vandthe advantages indicated are of real value r These units' may well b'edeveloped instand- .',ar'df'sizes forO, 60,580, 1005and120l-I. P. units,1and=ilargeriaunits may bemade ifde-` `fsired.- In'. fact,V 'sectional vtype radiatorsV of Y' i' the pneumatostaticdraft ,pipeprll' '-:The sec- A 'tonfs 21 areheld invpplace by the'boltsZ..

this general.v designihave been made for Ll5() BDiesel engine requirements.

Although but one specific embodiment of this invention is herein shown and described, it is to be understood that numerous details of the construction shown may bealtered or omitted without departing from the spirit of the invention as defined by the following claims. y

I claim:

A1. A radiator of the class described com-` prising a frame including top Vand bottom f headers, a core element disposed between and connecting said headers, a front casing providing a passageway connecting the lower and upper parts of said core element for multiple passage of air through said element, and an upwardly facing air discharge casing secured to the back side of the upper part of vsaid frame whereby a natural draft is induced by reason of convection.

2. Ayradiator of the class described adapted for independent mounting, said radiator vcomprising a frame, including side bars and top and bottom headers therebetween, a core located between the headers and connected therewith, supporting members connected with the side bars beneath the bottom header and extending to one side of the radiator, a cross member extending between and secured vto said supporting members, a fan for the radiator on the same side as the cross bar and carried by the radiator, a water circulating pump for the radiator on the same side as th cross bar and mounted thereon.

3. A radiator of the class described comprisingvupper and lower headers, a vertically elongated core disposed between and connecting said headers, a front casing extending between said headers for the full vertical extent of said core and providing a passageway connecting the upper and lower parts of said core for multiple passage of air through said core, a fan casing disposed on the opposite side of the core Afrom the front casing and in proximity to the lower portion of said core, a fan in cooperative relation to said casing for forcing air transversely through the core, then up through the casing and then in a reverse direction transversely of the core, and a discharge chamber disposed on the same side of the core as the fan casing but adjacent the upper part of the core for receiving and carrying off the air passing through the upper part of the core. n

Signed at Chicago, Illinois, this 5th day of July, 192e.

,. DANIEL T. MAGLEOD. 

